Improvement in extension-chandeliers



UNII'ED STATES PATENT OFFICE.

HIRAM TCKER, OB NEWTON, MASSAOHUSETTS.

IMPROVEMENT IN EXTENSlON-CHANDELIERS.

Specification forming part of Letters Patent N0. 93,927, dated August 17,1869. v

T0 all whom z't may concern:

Be it known that I, Hmnn TUOKER, of Newton, in the eounty of Mic'ldlesex and State of Massaehusetts, have invented an lmproved Extension-Ohandelier; and I d0 herebydeclare that the following, taken in eonneotion with the drawings which aceompany and forrn part of this speoifieation, is a deseription of my invention suffioient to enable those skilled in the art to practice it.

This invention.relates to the means 0r devices employed, and to their eombination and arrangement, by which a chandelier or other lamp 0r burner oarrying apparatus, whioh is suspended, 1nay be ra1sed 0r lowered within reasonable extreme 1irnits, and lockec1 or fastened in position at either of said limits, 0r at any intermediate point.

The drawings illustrate an embodiment of my invention. Figure 1 shows, in elevation, a chandelier havin g m y invention attaehed, by whioh the lower or light or burner bearin g portion ean be raised and lowered and loeked or fastened in any desirable osition between the upper and lower extreme positions. Figs. 2 and 3 show sectional views 0f some 0f the details 0f oonstruction and arrangemr'ant, and Fig. 4 shows a plan of the gripe er clamp employed to hold in any desired position the movable part of the chandelier.

'Ihe ehandelier sh0wn in the drawings is one adapted for using lamp-bodies 0r candles; but it will be described beyond how it 1nay be modified so as 130 adapt it to the use of gas.

T0 the pendent top pieee a a (zentral rod, b, is fixed, which is surrounded by a tube, c, 110 whioh tube the arms or lower part 0f the chandelier is attaehed, 0n which lower part provision is made to receive lamps or eandles. Said lower part is conneeted With the t0p piece a by elosely-wound spiral springs d, so proportioned that when the 1ower part of the chandelier is about midway between its extreme upper and lower positions, and the springs, in eonsequenee, about half extended, the lower part and its bnrden of lannps and oi1, or other burning-fluid or candles, will be nearly in a state of equilibrium.

011 the upper end of the tube c is fitted a pieee, e, olosely surrounding the rod b, and guiding the tube 0 as it is made to s1ide up am]. down on the rod b,

The' rod has a head, f, at its lower end, above which is p1aeed an open eoi1ed spiral spring, g, which serves as a bunter-spring, and prevents a sndden shoek or jar to the chand'elier when the lower part is drawn down 130 its lower extreme point, the spring g in such case being eompressed between the head f and that part 0f the oap e fitting elosely around the rod b.

In the 10wer end of the tube 0 may be plaeed another open-coiled bunter-spring, (not shown in the drawings,) whioh spring, so plaeed,

would prevent sndden stoppage and shock to the ehandelier on arriving at its extreme upper point of movement.

The piece e has attached to. it an arm or bracket, i, whiol1 serves as a support 0r fulorum for the lever k, which is pivoted to said arm, the pivot-pin passing through a slot in the 1ever k, thus allowin g to the lever a slight endwise rnovemenr.

In the 1ong arm 0f the lever is an aperture, so that the lever surrounds and embraces the rorl b, the 1ever k aeting as a gripe to prevent upward or downward movement 0f the lower part 0f the chandelier, aecording as the lever 7c isinolined upward or downward. VVhen the lever 70 is he1d horizontally it ceases t0 ach as a gripe, and1eaves the lower part of the chandelier free to move up or down, as may be reqnired. When the long arm of lever k is inclined upward, as seen in Fig. 2, then the gripe operates 130 prevent the descent of the lower part of the chandelier; and when it is in the position seen in Fig. 3, then it prevents the aseent of said lower part.

As the long arm of lever k is the heaviest, and inclines to gravitate downward, provision is made to keep the lever in the position seen in Fig. 2, so that when the lower part 0f the chandelier is above its medium position, as to height, the position 0f lever k shall not be a0- cidentally ehanged, whieh won1d result in the fall or descent of the lower part of the chandelier. Sai l provision is as follows: In the pu1l a, whieh is attaehedto the Short arm of 1ever k, by whieh pull the position 0f said ]e ver n1ay be shifted. and. controlled, is inserted a spring, 0, which, when the chandelier has been drawn downward, am]. when the spring 0 has been extended and the pu1l seoured to a pin in the lower part of the ehandelier, aets, 0n drawing the lower art 0f the ehandelier slightly dowmvmid, to revers6 the positi0n of the lever fiotn that seen in Fig. 3 to that seen' in Fig. 2.

When the lever k is in the position seen in Fig. 2, th en the chandelier is free t0 be moved upward.j;mt is prevented from moving down ward g1'i1ti1 such time as ehe 1ever k is purposely made t0 assume the position seen in Fig. 3.

When gas is t0 be burned, a gas-pipe takes the place 0f the rod b und a stuffing-boX 0'1 2'm' Wafcer-joint is arranged in the pieee e, 2U1(1 the gas is cauised t0 pass from the pipe tothe bumers in any manner n0w well known in gasburning chandeliers. y

T0 prevent undue extensior'1 of the spitzyl springs d d 01' o'cords may be' applied 001m6eting their ends, the cords being preferably dpplied. withiri the spring's, so as to be conea;led somewhat thereby, and being 0f such length as will permit the necessary extension of the springs, said cords 0f course being slack when the springs are 11013 extended 0r but partially extended.

I claim In con1bin'atioh with an extension-chandelie1, the supporting-springs d d a'nd the gripe 0r check lever k, arranged t0 operate substantially as described.

HIRAM TUCKER.

Witnesses:

J. B. QROSBY, 'FRANCIS GEOU'LD. 

